Radiator attachment for internal-combustion engines.



G. 0. HARWELL. RADIATOR ATTACHMENIFOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED AUG.2| 1916.

Patentd Dec. 25, 1917.

nome;

G. O. HHRWELL.

UNITE STATES PATENT OFFICE.

GEORGE oTIs HAnwELnoE onosr, cA'LIEonNrA, AssIsNon or oNE-Tnmn To EUGENE L. HABWELL AND ONE-THIRD To ERNEST m. HABWELL, or cnovrs, CALIFORNIA.

,BADIATOB ATTACHMENT on i TEnNAL-comBusTIoN ENGINES.

' Specification of Letters Patent. t t 25, 1917,

Application filed August 2, 1916. Serial K9 112382.

To all whom it may concern Be it known that I, a citizen of the United States, residing at Orosi, in the county of Tulare and State of .California, have invented certain new and useful Improvements in Radiator Attachments for Internal-Combustion Engines, of which the following is a specification, ref- "erence being had to the accompanying drawa reserve supply reservoir for water for the radiator and to condense the steam which is.

generated within the latter.

The' invention has for its primary object a simple, durable, and efiicient construction of device of this character which may be very cheaply made'and easily installed, or applied in operative osition without the necessity of special too s and with very little trouble or work and without; altering the construction or-arrangement of parts of the motor' and radiator, and the invention also aims to generally improve devices of this class so as to render them more useful and commercially desirable.

With these and other objects in view, as will more fully appear as the" description proceeds, theinvention consists incertain constructions, arrangements and combinations of the parts that I shall hereinafter more fully describe and claim.

For a full understanding of theinvention', reference is to be had to the following description and accompanying drawing, in which- Figure 1 is a sideelevation of my device partly broken out, the device being shown in applied position. i

Fig. 2 is a side elevation at right-angles to the position of the, device as shown in Fig 1, and

ig. 3 is atop plan view.

Corresponding and like parts are referred to in the following descriptionand accompanying drawing by like reference charac-' ters.

Referring to the drawing, the numeral 1 designates the radiator of an automobile,

and 2 the usual overflow pipe thereof, these GEORGE OTIS HARWELL,

This invention comprehends certain newand relates particu- I like, so as to constitute parts being of any desired construction or deslgn according to the make of automobile to which my inventionis applied.

In carrying out my invention, I provide with any desired number of perforations 7 for the escape of steam, if necessary.

The casing 3 1s provided at or nearits bottom with a downwardly inclined nipple 8 which preferably extends forwardly in the applied posltion of the device, and which is desi ed to have other end. of this conduit is adaptedto be slipped upon the lowermost rearwardly and downwardly pro ecting end 10 of the oversecured thereto one end of. a flexible conduitor rubber hose 9. The

material and of flow pipe 2, as clearly illustrated in the drawmg.

Preferably, the casing 3 is supported immediately behind the radiator 1 so that the fan of the motor will actthereon to assist in keeping the contents of the casin cool, and to further amist in maintaining t e water cool within thecasing, the casing is provided-with a passage 11 extending horizontally therethrough and open .throughout its length to the exterior atmosphere so that air pass freely through this-passage in an evi ent manner.

From the foregoing description inconneca I tion with the accompanying drawing, the

operation of my improved radiator attach- I ment will be apparent. Inthe practical use of the device, the band Li s clamped around the reservoir 3, and the [band secured in proper position by means of, one of the head olts extending through the apertured ear 5, and the conduit 9 is connected to the nippie 8 and lowermost end 10 of the radiator overflow pipe2.

Assuming that there is a certain amount.

of water in the radiator, and a certain amount of. water in the reservoir tank 3,

then it is obvious-that the water level in the reservoir tank 3 and the water level in the Overflow pipe 2 will be the same. Now upon starting the motor, the water in the radiator becomes heated and if sufficiently heated, steam will be generated. The expansion of the steam and the Water due to the heating will drive whatever air there is in the upper portion of the radiator over into the overflow pipe and out'through the overflow pipe, that is, through the liquid therein into the reservoir tank 3 and out through the perforations 7 in the cap of the reservoir tank. When this air has escaped, the steam which is within the upper portion of the radiator and Within the upper portion of the-reservoir pipe, would attempt to force its way through the overflow pipe and into the reservoir tank, and this steam coming in contact with the relatively cold water in the pipe 2 and in the reservoir tank would condense. So, long as the steam continues to be generated, it will be forced over into the resreservoir tank will immediately flow from the reservoir tank through the pipes 9 and 2 into the radiator and to an extent which will fill the radiator.

When again the car is run at a high speed and the water commences to boil and steamis generated, the operation above stated is trates what I believe to be the preferred embodiment of my invention, it is to be understood that the invention is not limited thereto, but that various changes may be made in the construction, arrangements and proportions of the parts Without departing from the scope of the invention as defined in the appended claim.

What is claimed, is:

In a motor vehicle having a. radiator and a fan, the-radiator being provided with an overflow pipe extending from its upper end, a water reservoir mounted immediately behind the fan and having a pipe connection to the lower end of the overflow pipe and having an air inlet in its upper end, said reservoir having an open-ended air pipe extending horizontally through the reservoir directly behind the fan and in a plane at right angles to the plane of rotation of the 7 fan. I In testimony whereof I hereunto aifix my signature in the presence of two witnesses. GEORGE OTIS HARWELL.

Witnesses:

E. M. HARWELL, GERTRUDE B. MCCORMICK. 

